Audio T Verdict
The IsoTek V5 Corvus provides nine independently connected power outlets within a compact mains power-cleaning bar, making it a practical choice for systems containing numerous source, network and audio-visual components.
Rather than wiring several sockets together in a conventional daisy-chain arrangement, every Corvus outlet connects independently to the central power-cleaning circuit. This is designed to reduce Differential Mode noise passing from one connected product into another.
The V5 circuit also addresses Common Mode radio-frequency interference, while IsoTek’s KERP architecture aims to maintain equal resistance and consistent power delivery across all nine sockets.
A maximum capacity of 10A or 2,300W at 230V is shared across the complete power bar. This is suitable for many full systems, although particularly demanding power amplifiers and subwoofers may be better served by one of IsoTek’s dedicated 16A products.
With 45,000A surge protection, System Link expansion, wall-mounting hardware and a 1.5m EVO3 Initium power cable included, Corvus offers a tidy and well-equipped alternative to using multiple conventional extension blocks.
IsoTek V5 Corvus Nine-Way Mains Power Bar
The IsoTek V5 Corvus is a nine-outlet power-cleaning and distribution bar for hi-fi, home cinema and network-based equipment.
It is based on the filtering principles used by the smaller V5 Polaris but expands the outlet count from six to nine, allowing a larger collection of components to be connected through one central power-cleaning system.
Each outlet is connected independently to the central circuit, helping reduce incoming mains noise as well as electrical contamination generated by the equipment already connected to the bar.
Nine Outlets, Not Six
The genuine IsoTek V5 Corvus provides nine output sockets plus one System Link connection.
It should not be confused with the six-outlet, 16A V5 Sirius, which has different dimensions, power handling, protection and supplied cable.
Nine Independently Connected Outlets
Many conventional power strips connect their output sockets together in a simple series arrangement.
That may distribute electricity successfully, but it can also allow electrical noise produced by one component to pass more easily into the products connected beside it.
In the V5 Corvus, every socket references the central power-cleaning circuit independently. This layout is designed to reduce Differential Mode cross-contamination between the nine connected products.
Suitable for Larger Systems
The nine-outlet layout makes Corvus useful for systems containing several source, network and control products.
A typical installation might include a streamer, DAC, CD player, turntable power supply, phono stage, amplifier, television, network switch and powered subwoofer.
The complete system must remain within the Corvus’ shared 10A or 2,300W rating, so the power consumption of every connected component should be checked before installation.
Typical Connected Equipment
- Network streamers and music servers
- CD and SACD players
- DACs and digital processors
- Preamplifiers and phono stages
- Turntable power supplies
- Integrated amplifiers
- Televisions and projectors
- Routers and network switches
- Active speakers or subwoofers within the total rating
10A or 2,300W Shared Capacity
The V5 Corvus has a maximum current rating of 10A for UK and European operation.
At 230V, this corresponds to a maximum total connected load of 2,300W across all nine sockets together.
The rating is not available independently from every outlet and should not be multiplied by the number of sockets.
Check the Complete System Load
Add together the published mains consumption of every connected product.
Do not use amplifier channel-output figures when calculating the electrical load. Refer to the rear-panel rating or manufacturer’s specification.
When a 16A Power Bar May Be More Suitable
Corvus can support many complete audio and home cinema systems, but some large amplifiers, mono power amplifiers, active speakers and powered subwoofers can place significant demands on the mains supply.
Where the total system approaches 2,300W, or where particularly high-current equipment forms the heart of the system, the 16A IsoTek V5 Sirius may be more appropriate.
Audio T can help calculate the connected load and determine whether Corvus provides sufficient capacity.
Common Mode Mains Noise
Common Mode noise is interference that appears in relation to earth and is often associated with radio-frequency energy.
Wireless routers, mobile communications, computers, chargers and other electronic products can all contribute to the radio-frequency environment within a modern home.
The Corvus power-cleaning circuit is designed to reduce this unwanted high-frequency energy before it reaches the connected equipment.
Differential Mode Mains Noise
Differential Mode noise appears between live and neutral and may be generated by the power supplies inside electrical products.
Digital components and switch-mode power supplies can return high-frequency electrical noise to the circuit even when the household mains supply itself is relatively clean.
The Corvus addresses this through its central filter topology and independently connected outlet arrangement.
Reducing Component Cross-Contamination
A power-cleaning product must deal with noise arriving from the wall supply, but it must also consider the equipment connected to its own outlets.
A network switch or television may return switching noise to the power bar, while an amplifier creates a changing electrical load during operation.
By giving every outlet a direct connection to the central circuit, Corvus is designed to limit the extent to which these products interfere with one another.
Delta Filter Topology
The V5 Corvus uses IsoTek’s delta filter topology to address mains noise over a broad frequency range.
IsoTek specifies more than 20dB of power cleaning at 1kHz and approximately 42dB at 10kHz under its published reference conditions.
The practical result will depend on the incoming supply, connected products and frequency of the interference, but the circuit is designed to operate well below the very high radio frequencies targeted by many basic filters.
35dB Published RFI Reduction
IsoTek publishes an overall RFI reduction figure of up to 35dB for the V5 Corvus.
This figure provides a broad point of comparison within the IsoTek range, while the detailed filtering performance varies according to frequency and test conditions.
The Corvus is a passive power-cleaning product and does not regenerate or rebuild the incoming mains waveform.
KERP Equal-Resistance Power Distribution
IsoTek describes its outlet architecture as KERP, meaning Kirchhoff’s Equal Resistance Path.
The design aims to give every socket a consistent electrical path back to the central circuit, rather than making the final outlet depend on electricity passing through the connections serving the sockets before it.
This works alongside the independent outlet arrangement to support consistent power delivery across the bar.
Silver-Plated PCB
The V5 Corvus uses a central printed circuit board with increased copper loading compared with a conventional low-cost power strip.
The conductive paths are silver plated as part of IsoTek’s approach to reducing resistance and maintaining a high-quality connection throughout the internal circuit.
The PCB forms the central reference point for the nine independently connected outlets.
Silver-Plated 6N Copper Wiring
The internal wiring uses multi-strand 6N oxygen-free copper, meaning a stated purity of 99.9999%.
Each conductor strand is silver plated to provide a highly conductive outer surface while retaining the flexibility of a multi-strand internal cable.
The wiring has a 2mm² cross-sectional design intended to support low resistance and the Corvus’ 10A current rating.
FEP Dielectric
The internal conductors are insulated using Fluorinated Ethylene Propylene, normally abbreviated to FEP.
FEP provides durable electrical insulation while offering a relatively low dielectric constant compared with the materials used in many ordinary extension blocks.
This construction is also used within several IsoTek power cables, helping maintain common materials through the power connection.
45,000A Surge Protection
The V5 Corvus includes IsoTek’s sequential and repeatable surge-protection circuit, with published instantaneous protection of 45,000A.
The network is designed to respond progressively according to the scale of the incoming surge or voltage spike.
Protection can help reduce the risk posed by common electrical disturbances, although no mains product can guarantee protection against every event or a direct lightning strike.
Disconnect During Severe Electrical Storms
Where practical and safe, disconnect sensitive audio and home cinema equipment during severe electrical storms.
Surge protection should not be treated as an absolute guarantee against lightning or major supply faults.
Replaceable 10A HRC Fuse
The Corvus uses a 10A high-rupturing-capacity fuse to protect the product against overload and fault conditions.
The fuse is housed within the inlet assembly and should only be replaced with the exact type and rating specified by IsoTek.
A repeatedly failing fuse may indicate an overloaded power bar or faulty connected component and should be investigated rather than continually replaced.
Use Only the Correct Fuse
Never install a fuse with a higher current rating in an attempt to support a larger system.
Increasing the fuse rating can defeat the intended protection and create a serious electrical hazard.
Fully Star-Earthed Network
The protective-earth connections reference a central point within the Corvus rather than being passed sequentially from one socket to the next.
This star-earth arrangement is intended to maintain a consistent earth reference for all nine connected products.
The Corvus must be connected to a correctly installed and properly earthed wall socket.
System Link Expansion
A System Link outlet allows another compatible IsoTek power-cleaning or distribution product to be connected without occupying an additional wall socket.
The linked products retain a common star-earth reference, helping maintain a structured power arrangement as the system grows.
A suitable IsoTek System Link cable is required and must match the connection used by the additional product.
System Link Does Not Add More Available Power
Linked products remain part of the same electrical circuit and do not increase the Corvus’ 10A or 2,300W capacity.
The combined load must remain within the limits of the Corvus, System Link cable, wall socket and household supply.
Wall-Mounting Bracket Included
The supplied wall-mounting system allows the V5 Corvus to be fitted discreetly behind an equipment rack or furniture.
The mounting surface and fixings must be suitable for the 2kg product weight as well as the mechanical pull created by nine connected power cables.
Position the unit so that its mains inlet, fuse and output sockets remain accessible for inspection and disconnection.
Compact Nine-Outlet Layout
Corvus measures 170mm wide, 50mm high and 380mm long.
The wider format accommodates nine UK sockets in a relatively short power bar, rather than placing them in one very long line.
Allow additional space around the product for the mains plugs, power cables and System Link connection.
Supplied EVO3 Initium Power Cable
The V5 Corvus is supplied with a 1.5m IsoTek EVO3 Initium power cable.
The cable connects to the Corvus through its 10A IEC C14 inlet using a matching IEC C13 connector.
Initium uses three 2.0mm² high-purity oxygen-free copper conductors and provides a suitable standard connection for the Corvus’ rated capacity.
Upgrading the Incoming Cable
The supplied Initium cable can be replaced with a compatible higher-performance IsoTek power cable using the same C13 equipment connection.
Possible upgrades include EVO3 Premier and EVO3 Sequel, depending on the system, budget and required cable length.
The replacement must retain the correct plug, connector and electrical rating.
A Power Bar, Not a Regenerator
The V5 Corvus passively filters and distributes the incoming mains supply.
It does not rebuild the mains waveform, regulate the voltage or remove direct-current offset from the incoming supply.
Where transformer hum is being caused by DC contamination, an IsoTek Syncro Uni may be used ahead of a compatible Corvus installation.
Planning the Nine Outlets
Before connecting the system, record the mains consumption and connector requirements of every component.
Keep particularly noisy switch-mode power supplies and network equipment physically separated from sensitive low-level analogue cables where practical.
Arrange the plugs so that large adaptors do not obstruct neighbouring sockets or place excessive strain on the power bar.
Installation Guide
- Confirm that the combined system load remains below 10A or 2,300W
- Position the Corvus on a stable surface or install the supplied wall bracket
- Keep the mains inlet and fuse accessible
- Switch off and disconnect all equipment
- Connect the supplied EVO3 Initium cable to the IEC C14 inlet
- Connect each component to one of the nine output sockets
- Keep plugs and cables clear of ventilation openings on other equipment
- Avoid sharp cable bends and excessive tension
- Connect the Corvus to a correctly earthed wall socket
- Switch on the Corvus before the connected equipment
- Check for normal operation and excessive heat
- Recheck the total load whenever equipment is added or replaced
What Might You Hear?
Reducing mains noise and electrical interaction between connected products may help a suitably revealing system reproduce low-level information more clearly.
Depending on the system and incoming mains supply, possible improvements can include cleaner bass definition, clearer separation, a quieter perceived background and more stable stereo imaging.
The scale of any change will depend on the connected equipment, surrounding electrical environment and existing power arrangement.
V5 Corvus or V5 Polaris?
Choose V5 Corvus When
- Nine output sockets are required
- The complete system remains within 10A
- A shorter, wider power bar suits the installation
- Several network or AV components need power
- Wall mounting is useful
Choose V5 Polaris When
- Six outlets are sufficient
- A narrower 80mm power bar is preferable
- The system uses fewer components
- The same 10A capacity meets the requirement
- A more affordable entry point is preferred
The IsoTek V5 Polaris provides six independently connected outlets with the same 10A maximum rating.
V5 Corvus or V5 Sirius?
Choose V5 Corvus When
- Nine outlets are more important than maximum current
- The system remains within 2,300W
- Several source and network components are connected
- A compact 380mm-long bar suits the room
- An EVO3 Initium incoming cable is appropriate
Choose V5 Sirius When
- 16A or 3,680W capacity is required
- Large amplifiers or subwoofers are connected
- Six outlets are sufficient
- Stronger filtering and protection are preferred
- An IEC C20 high-current inlet is required
Related IsoTek Products and Audio T Guides
Key Features
- Nine-way mains power-cleaning bar
- Nine independently connected output sockets
- Central Common Mode and Differential Mode filter
- Designed to reduce component cross-contamination
- 10A maximum current
- 2,300W maximum load at 230V
- 35dB published RFI reduction
- More than 20dB filtering at 1kHz
- Approximately 42dB filtering at 10kHz
- KERP equal-resistance power distribution
- Fully star-earthed network
- Silver-plated PCB
- Increased PCB copper loading
- 2mm² internal wiring
- Multi-strand 6N oxygen-free copper
- Silver-plated conductor strands
- FEP conductor dielectric
- 45,000A instantaneous surge protection
- 10A HRC fuse protection
- System Link expansion outlet
- Wall-mounting bracket included
- 10A IEC C14 mains inlet
- 1.5m EVO3 Initium power cable supplied
- Compact 170 × 50 × 380mm construction
- 2kg product weight
Frequently Asked Questions
How many outlets does the V5 Corvus provide?
It provides nine independently connected mains outlets plus one System Link connection.
Is Corvus a six-way power bar?
No. The genuine V5 Corvus has nine outlets. IsoTek’s six-outlet high-current power bar is the V5 Sirius.
What is the maximum current?
The Corvus has a maximum current rating of 10A for UK and European operation.
What is the maximum wattage at 230V?
The maximum total connected load is 2,300W across all nine outlets combined.
Does every outlet provide 2,300W?
No. The 2,300W rating is shared across the complete power bar.
Can I connect a power amplifier?
Yes, provided the complete system remains within 10A or 2,300W. Particularly demanding amplifiers may be better suited to a 16A IsoTek product.
Does Corvus include surge protection?
Yes. IsoTek specifies 45,000A of instantaneous surge and spike protection.
Does it remove both Common Mode and Differential Mode noise?
Its central filter is designed to reduce both, while the independent outlets help limit Differential Mode cross-contamination.
What is the published RFI reduction?
IsoTek specifies RFI reduction of up to 35dB.
What is System Link?
System Link allows another compatible IsoTek product to be connected while retaining a common star-earth reference.
Does System Link increase the 10A capacity?
No. Linked equipment remains part of the same electrical supply and total load calculation.
Can the V5 Corvus be wall mounted?
Yes. A wall-mounting bracket system is included.
Which power cable is supplied?
A 1.5m IsoTek EVO3 Initium power cable is supplied.
What are the dimensions?
The Corvus measures 170mm wide, 50mm high and 380mm long, and weighs approximately 2kg.
Why Buy From Audio T?
- Specialist IsoTek demonstrations
- Complete system power-consumption checks
- Corvus, Polaris and Sirius comparisons
- Power amplifier compatibility guidance
- System Link expansion advice
- Power-cable upgrade recommendations
- Wall-mounting and installation guidance
- Home demonstrations where available
- Ongoing system and setup support
Contact your local Audio T store to confirm whether the 10A V5 Corvus provides the correct outlet count and power capacity for your complete system.